Disclaimer: This material is being kept online for historical purposes. Though accurate at the time of publication, it is no longer being updated. The page may contain broken links or outdated information, and parts may not function in current web browsers. Visit https://espo.nasa.gov for information about our current projects.

 

Sandia National Laboratory 2-channel Radiometer (PHOT)

Status

Operated By: 
PI

The Sandia National Laboratory 2-channel radiometer uses two narrow-band (10 nm) filters in the red and near-IR at a sampling rate of many thousands per second. It measures the total radiative output of the SRC during entry in the 380-600 nm band and the 600-900 nm band and detect rapid fluctuations of light output from spacecraft rotation, instabilities in the shock layer, and ablation.

This instrument consists of two photometers, each equipped with a filter of choice: here a low-pass and high-pass cut-off filter. Each photometer measures the sky over a large ~15 degree field of view, at about 5 - 35 degree elevation.

Instrument Type: 
Measurements: 
Aircraft: 
Point(s) of Contact: 
Dick Spalding (POC; PI)